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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-06-23 02:06:26 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-09-23 16:41:54 +0200 |
| commit | 4cdfc175c25c89eedc08460b5e6239c2ec67fcb6 (patch) | |
| tree | 716acd208cb0633cdd19fc0cd5ad601906cceb24 /kernel/rcutree_trace.c | |
| parent | rcu: Segregate rcu_state fields to improve cache locality (diff) | |
| download | linux-4cdfc175c25c89eedc08460b5e6239c2ec67fcb6.tar.xz linux-4cdfc175c25c89eedc08460b5e6239c2ec67fcb6.zip | |
rcu: Move quiescent-state forcing into kthread
As the first step towards allowing quiescent-state forcing to be
preemptible, this commit moves RCU quiescent-state forcing into the
same kthread that is now used to initialize and clean up after grace
periods. This is yet another step towards keeping scheduling
latency down to a dull roar.
Updated to change from raw_spin_lock_irqsave() to raw_spin_lock_irq()
and to remove the now-unused rcu_state structure fields as suggested by
Peter Zijlstra.
Reported-by: Mike Galbraith <mgalbraith@suse.de>
Reported-by: Dimitri Sivanich <sivanich@sgi.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutree_trace.c')
0 files changed, 0 insertions, 0 deletions